I'm trying to find an example that detects an Intel integrated graphics chip and chooses the NVidia card, in laptops that have both. I can only find a lot of people talking *about* the extension, but no actual examples of it in use.

I am trying this code to show the GPU names but I get an "unhandled exception" error on the call to wglEnumGpusNV(). This is on a GEForce 480 with the latest driver:

Sorry if this is obvious, but neither your code snippet nor your post mention it, so: Have you checked if the extension if available on your context (using wglGetExtensionsString) and have you obtained the extension function pointer (using wglGetProcAddress)?

Timinator

07-02-2013, 07:32 PM

GPU Affinity is only supported on Quadro cards.

eile

07-03-2013, 03:13 AM

This should be the shortest standalone example: https://github.com/Eyescale/Equalizer/blob/master/tools/affinityCheck/affinityCheck.cpp

manum3d

07-03-2013, 04:20 AM

Don't know if you have already seen this article in geeks3d:
http://www.geeks3d.com/20081014/parallel-rendering-in-opengl-how-to-use-multiple-gpus/

mhagain

07-03-2013, 04:31 AM

For forcing NVIDIA Optimus laptops to always use the NVIDIA card for your program, see the following PDF: http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf